Malaria Mosquitoes

Malaria Mosquitoes Tube. Duration : 2.28 Mins.

Humanwire correspondent Ruud Elmendorp reports on the growing concern of malaria cases in Burkina Faso due to mosquitoes developing resistances to insecticid...

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Tv9 Gujarat - AMC drive to control Malaria in City, Ahmedabad

Tv9 Gujarat - AMC drive to control Malaria in City, Ahmedabad Tube. Duration : 2.10 Mins.

Ahmedabad Municipal Corporation has started a drive to kill mosquitoes. With increasing heat the number of diseases, especially in March month increases. In March month the number of malaria cases was 406 in which 5 people died whereas in April month till now a total of 112 cases of Malaria has registered. The Corporation is keeping a keen eye on food units.

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Malaria prevention For The Traveller

Malaria arresting is top of the list for whatever intending to visit a part of the world where malaria mosquitoes are to be found. Personal safety for the traveller focuses on two main as­pects, the first is to forestall being bitten by mosquitoes and the second relies on taking antimalarial drugs regularly.

When a malaria-carrying mosquito bites a person, the malar­ia parasites voyage to the liver via the blood stream and make there without causing any signs of illness. Once the toady is ready, it leaves the liver and attacks the red blood cells. This is the stage at which anti-malarial drugs act, by preventing the toady from infecting blood cells and thereby preventing the symptoms of malaria from developing. It is prominent to keep taking anti malarial regularly while abroad, so that drug levels in the blood are adequate to forestall disease, and to continue taking the drugs for four weeks after leaving the malaria area, so that the incubation period after any inherent bites is covered by the drugs.

Kill Mosquitoes

The malaria-carrying mosquitoes bite from dusk to dawn and bites can be prevented by using a composition of methods:

The first is your clothing and the advice is you wear shirts and trousers after dusk. Clothing can also be soaked in repellent, 30 millilitres of repellent dissolved in 250 millilitres of water is an productive mixture, or sprayed with 100 per cent Deet but you must use only on cotton not artificial clothes.

Secondly is the use of barriers, and you must if you can sleep in an air-conditioned or a screened room, or under a mosquito net preferably one impregnated with perme-thrin, in the ratio of 0.2 grams of permethrin per metre of material. A small but very valid point is to ensure the net is perfect with no tears, and especially if you are in non airconditioning, that you ensure the net is empty after you get in, and sealed by tucking into the mattress.

Thirdly repel or kill any mosquitoes which have en­tered the bedroom with pyrethrum sprays, mosquito coils or electrical insecticide dispensers. Electronic buzzers are not effective. Using repellents containing diethyltoluamide, Deet, 50 per cent Deet is more effective, and recommended for malaria areas. Children, pregnant women and travellers with skin conditions may prefer to use eucalyptus-based repellent Mosiguard Natural.

Anti-malarial drug therapy is an area fraught with difficulty. The changing pattern of drug resistance, together with inherent side-effects of the drugs, have made it increasingly difficult to choose the strict regimens. With this in mind, it is advisable for all travellers to secure specialist guidance prior to their trip.

Malaria prevention For The Traveller

A Possible Safe New Way to Kill Mosquitoes That Spread Malaria

A Possible Safe New Way to Kill Mosquitoes That Spread Malaria Video Clips. Duration : 4.33 Mins.

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Mosquitoes and Malaria

The bites of the base British species of mosquito (Culex pipiens) cause diminutive more than irritation and swelling. In many tropical countries, the Middle East and Southern Asia, species of mosquito in the genus Anopheles transmit the disease malaria. It is estimated that about 280 million population suffer from malaria and over 2 million or more die each year.

The disease is caused by a single-celled toady (Plasmodium spp.) which enters the blood stream as a effect of a 'bite' from an infected mosquito. The parasites enter the red blood cells and reproduce there, feeding on the cytoplasm of the cell. The red cells at last burst open and release the parasites into the blood stream, where they go on to infect other red cells. When hundreds of red cells burst simultaneously, they cause the inpatient to suffer from fever. The regular phases of gravidity and release yield regular bouts of fever.

Kill Mosquitoes

If a mosquito sucks blood from an infected person, the parasites break out of the red cells and enter the mosquito's gut wall where they continue to reproduce. From here they migrate to the salivary glands. The next man to be bitten will receive saliva containing the toady and will probably develop malaria. The parasites first enter the cells of the liver and reproduce there. When they break out, they go on to invade the red blood cells.

There are three lines of defence against the disease; destroying the malarial toady in the blood, destroying the mosquitoes which transmit the disease and preventing population from being bitten.

There are drugs such as Chloroquine which destroy the parasites in the blood but not in the liver. The malarial toady has, in many cases, advanced resistance to these drugs and new drugs are constantly being sought.

Insecticides can be used to kill mosquitoes in dwellings but, here again, the mosquitoes have advanced resistance to insecticides such as Ddt. Other ways of reducing the mosquito population involve draining the swamps when they breed, increasing the flow of sluggish streams to carry away the eggs and larvae, spraying oil and insecticide to kill the larvae in the water, face all stores of water and preventing water from accumulating in discarded tins, tyres etc.

To avoid being bitten by mosquitoes, screens can be placed over windows and doors and, since most bites occur at night, population can sleep under a tent of fine netting to keep mosquitoes out.

An arduous crusade for a vaccine has not been successful so far.

More information, and illustrations to accompany this article, can be found on biology-resources.com

Mosquitoes and Malaria